20439478

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{17351}}^1$

素因数の和:17403

約数の個数: 16

約数和(自身を含む): 33315840

約数和(自身を除く): 12876362

約数列:

[1, 2, 19, 31, 38, 62, 589, 1178, 17351, 34702, 329669, 537881, 659338, 1075762, 10219739, 20439478]

約数ペア:

[(1, 20439478), (2, 10219739), (19, 1075762), (31, 659338), (38, 537881), (62, 329669), (589, 34702), (1178, 17351)]